Table 4.

ORs and 95% CIs of DTC risk factors related to family history characteristics

Variables	Cases (n = 203)	Controls (n = 212)	Crude OR1 (95% CI)	Adjusted OR2 (95% CI)
Family history of thyroid pathology
None	165	177	1*	1*
Thyroid cancer	7	3	2.3 (0.6 – 9.2)	2.7 (0.6 – 12.0)
Goiter	16	19	0.9 (0.4 – 1.8)	1.1 (0.5 – 2.4)
Hyper-/hypothyroidism	15	13	1.3 (0.6 – 2.9)	1.5 (0.6 – 3.4)
Family history of other cancer
No	164	165	1*	1*
Yes	39	47	0.8 (0.5 – 1.3)	0.8 (0.5 – 1.4)
Father's build (unknown n = 6)
Thin	63	55	1*	1*
Normal	107	117	0.8 (0.5 – 1.3)	0.7 (0.5 – 1.2)
Large	30	37	0.7 (0.4 – 1.3)	0.7 (0.4 – 1.3)
Mother's build (unknown n = 4)
Thin	44	43	1*	1*
Normal	124	124	1.0 (0.6 – 1.7)	1.1 (0.6 – 1.8)
Large	33	43	0.8 (0.4 – 1.5)	0.7 (0.4 – 1.4)

¹Stratified for gender and age classes.

²Stratified for gender and age classes and adjusted for smoking status, ethnical group, level of education, number of pregnancies, height, and BMI.

^*Reference category.